| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 2 | KYON LOBBE | 9 | Eston | 1:04.90 |
| 3 | 4 | JAKE DOWSON | 14 | Thirsk WH | 55.87 |
| 4 | 3 | JAMES PRICE | 9 | Thirsk WH | 59.88 |
| 5 | 1 | BERTIE LAWSON | 9 | Thirsk WH | |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | FINLAY HALLIDAY | 10 | Northall'ton | 47.24 |
| 2 | 8 | ETHAN GRANGER | 12 | Thirsk WH | 45.85 |
| 3 | 10 | JACOB WHARTON | 19 | Northall'ton | 31.60 |
| 4 | 9 | JOE HORNER | 13 | Eston | 39.81 |
| 5 | 7 | RILEY TAYLOR | 15 | Eston | 47.03 |
| 6 | 5 | MATTHEW CURRAN | 12 | Northall'ton | 52.95 |